Related Experiment Video
Updated: Jan 24, 2026

Method for the Assessment of Effects of a Range of Wavelengths and Intensities of Red/near-infrared Light Therapy on Oxidative Stress In Vitro
Published on: March 21, 2015
Infrared intensities and molar refraction of amorphous dimethyl carbonate - comparisons to four interstellar
Reggie L Hudson1, Falvia M Coleman2
1Astrochemistry Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA. reggie.hudson@nasa.gov.
Abstract:
The first measurements of infrared (IR) band intensities of solid dimethyl carbonate are presented along with measurements of this compound's refractive index and density near 15 K, neither of which has been reported. Molar refractions are used to compare these results to other new data from ices made of methyl acetate, acetone, acetic acid, and acetaldehyde, four molecules known to exist in the interstellar medium. Comparisons are made to IR intensities taken from the literature on amorphous ices. The value and importance of comparisons based on molecular structures, to predict and test laboratory results, are highlighted.
Related Concept Videos
Molar Mass
Applications of the Ideal Gas Law: Molar Mass, Density, and Volume
Carbon Skeletons
Factors Affecting Dissolution: Polymorphism, Amorphism and Pseudopolymorphism
Some polymorphic crystals possess lower aqueous solubility than their amorphous counterparts, leading to incomplete absorption. For instance, the oral suspension of Chloramphenicol, which...
The Carbon Cycle
Molecules and Compounds

